- var_dump: documentation ( source)
- sort: documentation ( source)
- array_unique: documentation ( source)
<?php
$array = ["red", "color" => "red", 78, 78, 12, "12", false, null, false, 0, true, 1, 0, null, 2.12, "2.12", 8, "-s"];
var_dump(array_unique($array, SORT_REGULAR));
sort($array, SORT_REGULAR);
var_dump($array);